Julius c



J. C. GOODWIN.

BOBBIN WINDER PoR SEWING MAGHINBS.

,383. Patented June 13 (No Model.)

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Y NrrED STATES PATENT OFFICE.

JULIUS C. GOODWIN, OF KALAMAZOO, MICHIGAN, ASSIGNOR OF ONE-HALF TOIVILLIAM HOTOP, OF SAME PLACE.

BOBBIN-WINDER FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 259,383, dated .Tune13, 1882.

Application filed March 2l, 18S-2. (No model.)

To all whom it may concern:

Be it known that I, JULIUS C. GOODWIN, a citizen of the United States,residing at Kalamazoo, county of Kalamazoo, State of Michigan, haveinvented new and useful Improvementsin Sewing-Machines, of which thefollowing is a specification.

My invention has for its objects certain improvements, in combinationwith the bobbinwnder, to effect useful results, hereinafter described. v

In the drawings, forming a part of this specitication, Figure 1 is asideelevation of my invention, showing the machine-arm partly in sectionand theV bobbin-winder swung down; Fig. 2, a section on line 3 4 in Fig.3; Fig. 3, a view, looking from a point at the right of Fig. l, with thebobbin-winder swung up to engage the belt, the upper portion of saidfigure being in section on line 1 2 in Fig. l; Fig. 4, an end view ofthe hub of the belt-pulley, with the pulley-shaft in section, on line 56 in Fig. l; and Figs. 5 and 6, detached parts in perspective,hereinafter described.

B is the pulley-shaft, located in the hollow arm A, as in manysewing-machines, said shaft connecting with theneedle-bar (not hereshown) in a manner to impart a vertical movement thereto. l

F is the y-wheel, rigidly keyed to shaft B.

I) is the belt-pulley, revolubly located on shaft B, around which thebelt x :c is located, at the top, the lower portion of said belt beinglocated, in the usual manner, around the treadlewheel below the table.(Not here shown.)

H illustrates the common bobbin -winder with belt -wheel lw. I providethis bobbinwinder with a cam-lever, C, integrally formed therewith, orfirmly secured to the same at the point of pivoting, Fig. 3. Thecircular edge of this lever C consists of a flange or rim increasing inwidth from one end to the other, Fig. l. t is a vertical lever pivotedto the arm A on the inside, or to other suitable support at d. The lowerend of this lever terminates in a right-angled extension, s, through theright side or wall of arm A, and bears spring o. This extension may berigidly or integrally formed with the vertical part of the lever, or 5oit may be pivoted, as in Figs. 1 and 6.. When rigidly secured the holethrough which it passes should be sufficiently large to admit of theslight vertical play ot' said part s. The outer end is provided withslot fi, adapted to receive 5 5 the tapered rim of the lever-cam, Figs.l and 6. The upper end of the vertical lever tis loosely located in agroove of a collar, a, said collar being adapted to revolve with shaftB, and to be moved laterally thereon, Figs. 1, 2, 6o 3. To this collar alocking slide or bar, c, is secured, one or more, as desired. This slidecis provided with a projection, a', which is adapted to pass intomortises h h of the hub of beltpulley D in locking said pulley. Thelockingslide c is located in a channel or recess in shaft B, and isadapted to slide back and forth therein. fn m is a recess formed in theend of the shaftsupport around said shaft B to accommodatc projections aa. By thus adapting a 7o bobbin-winder to lock and unlockthe belt-pulleygreater convenience in construction and operation is effected,especially in sewing-machines of the style described, and nearly all themechanism is shielded from view.

In the operation, referring to Fig. 1,7when the bobbin-winder is swungdown, bringing the narrow end of the inclined rim in recess i, as insaid gure, spring n forces thelever t back, moving collar et totheright, with the locking- 8o slide c, thus locking the belt-pulley, asbefore explained. Swinging the bobbin-winder up, as in Fig. 3, moveslever t to the left, and also the collar a and locking-slide c,unlocking the belt-pulley, as in Fig. 2.

Having thus described my invention, what I claim isl. In asewing-machine, the combination, with the recessed pulley-shaft providedwith the collar and locking-slide, the belt-pulley 9o having therecesses to receive the locking-slide, and the bobbin-winder providedwith the camlever, of the pivoted lever having the rightangledextension, bearing a spring, and slotted to receive said cam-lever, theupper end of said pivoted lever being adapted to operate the slidinglock, all substantially as set forth.

ing the end projections, of the shaft-supportsaid projections play whenthe shaft revolves,

2. In a. mechanism for causing the movesubstantially as described andshown.

5 ments of the bobbin-winderto lock and unlock the belt-pulley, thecombination7 with the pulley-shaft having the recess in which thelocking-slide is located, and the locking-slide hav- JULIUS C. GOODWIN.Vitnesses:

W. H. WooDHAus, W. H. WooDHAMs, J r.

